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chore(knip): add lint:knip:public-api to warn about public API exports the monorepo doesn't use (AI-assisted) - #12769
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…rts the monorepo doesn't use (AI-assisted) Exports of package entry points are public API: never remove them as dead code. Document this rule in AGENTS.md. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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The title names the main change: a new lint:knip:public-api command that warns about unused public API exports. It also names the chore(knip) scope. The changeset adds this script, the matching Knip… |
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The title names the main change: a new
lint:knip:public-apicommand that warns about unused public API exports. It also names the chore(knip) scope. The changeset adds this script, the matching Knip config, and AGENTS.md guidance that keeps entry-point exports as public API. The title does not mention the AGENTS.md guidance, but it is not misleading and it covers the primary change.
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Inline comments:
Review comments at @knip.config.ts:
- Around line 30-43: Update the ignoreIssues entry for
`packages/docusaurus-{plugin,preset}-*/src/index.ts` in `ignoreIssues` to
suppress only `exports` diagnostics; keep `types` diagnostics enabled so the
preset’s public type exports can be reported.
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AGENTS.mdknip.config.tspackage.json
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…les (AI-assisted) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Motivation
The dead-code sweep of #12751 ran a one-off
knip --include-entry-exports, and an agent then proposed removing public API:listStorageKeys(#12763) andaddSuffix(#12765). Both PRs were closed. The exports of package entry points are public API, even when the monorepo doesn't use them and even when undocumented. Third-party sites, plugins and themes use them.The CI check
pnpm lint:knipnever reports these exports. The problem was the manual run plus the agent's judgment, so this PR fixes both:AGENTS.md: a short rule next to the Knip commands. Never remove public entry point exports as dead code. Report them, and only remove one when a maintainer decides to, as a breaking change./internalentry points have no stability guarantee, but removing their exports is still a breaking change PR.pnpm lint:knip:public-api: warns about the public API exports that the monorepo doesn't use, and always exits 0. Whenknip.config.tssees--include-entry-exports, it switchesexports/typesto thewarnseverity and ignores the entry points that are public by design. A manualknip --include-entry-exportsgets the same treatment.It isn't part of
pnpm lintor CI. Nobody reads warnings in CI logs, so maintainers should run it on demand.Answers
index.tsAPIs, or other public entry point APIs? With theAGENTS.mdrule. On the tooling side, the failing checks already ignore entry point exports, and the only Knip run that reports them now prints warnings.includeEntryExports(a CLI flag, or a root or per-workspace option) opts in.rulesseverities set towarndon't fail the run, andignoreIssuesmaps file globs to ignored issue types. Knip passes the parsed CLI args to the config function, so the config can apply all this only to the--include-entry-exportsrun. Knip has no way to ignore an export by name. It also can't tellpackage.jsonentry points apart from the entries declared in the config. JSDoc@publictags hide an export, but they would mean annotating hundreds of exports.pnpm lint:knip:public-apiprints 115 warnings (63 exports, 52 types). The raw--include-entry-exportsoutput has ~610 issues. Excluded as public by design:src/theme/**), resolved through@theme/*aliases or swizzled.src/index.ts), which Docusaurus loads by name from the site config. Their types are still reported.@docusaurus/types: Knip doesn't link the imports of@docusaurus/typesto that package.What remains
About 107 warnings are real public exports that the monorepo doesn't use. Some appear twice, once for the entry point's re-export and once for the original declaration:
theme-common:listStorageKeys,mergeSearchParams, footer and color mode types, several/internalhooks and types (some are removed by break(theme-common): remove unused/internalhooks (AI-assisted) #12764)utils:toURLPath,createExcerpt,parseMarkdownContentTitle,isNameTooLong,shortName,findFolderContainingFile,reportInlineTags,OUTPUT_STATIC_ASSETS_DIR_NAME, typesutils-common:addPrefix,addSuffixutils-validation:PluginIdSchema,FrontMatterLastUpdateErrorMessageplugin-content-docs: theclientandserverAPIs, and many files under./lib/*and./src/*. This package exports every file through these wildcards, and so do blog, live-codeblock and mermaid.PluginOptions/Optionstypes of 8 plugins, which only sites use in their configtheme-mermaidandtheme-search-algolia, and the types ofglob,mdx-loader, docs and blogThere are 8 known false positives. Knip can only exclude them with one glob per file, or with
includeEntryExports: falsein a separate config block for each package:defaultexport ofmdx-loaderand of the blogmarkdownLoader.tsgtag.ts,nprogress.tssrc/index.ts:validateOptions/validateThemeConfigin the gtag, pwa and theme-classicoptions.ts, and theme-classicgetSwizzleConfig.tsTest Plan
pnpm lint:knippasses, with the same 3 configuration hints asmain(refactor: remove the remaining dead code leftovers (AI-assisted) #12751 fixes them).pnpm lint:knip:productionpasses.packages/docusaurus-utils/src/urlUtils.ts, then reverted them:lint:knipfails on the unused export.lint:knip:productionfails on both exports.lint:knip:public-apionly warns and exits 0.pnpm lint:knip:public-apiexits 0. The SARIF reporter gives all 115 issues thewarninglevel, includinglistStorageKeysandaddSuffix.eslint knip.config.tsreports 0 errors. Its only warning is amax-lenwarning thatmainalready has.Test links
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Related issues/PRs
knip --include-entry-exportslistStorageKeys(AI-assisted) #12763, break(utils-common): remove unusedaddSuffix()(AI-assisted) #12765: closed PRs that removed public API/internalhooks (AI-assisted) #12764: removes unusedtheme-common/internalre-exports, as a breaking changeWritten with AI assistance (AI-assisted).
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